| abstract |
(57) [Abstract] [Purpose] To provide a complex solution for oxygen separation that enables oxygen separation by a temperature fluctuation method at room temperature and a small temperature difference. [Structure] General formula (A) (In the formula, R1, R2, R3 and R4 each represent hydrogen, an alkyl group or an alkoxy group, and R5, R6, R7, R 8 represents a methyl group. ) The cobalt-Schiff base complex represented by the formula (4) and the axial ligand coordinated to the fifth dentate in the axial direction of the complex are dissolved in a solvent, and the complex is bound to oxygen by the absorption of oxygen to precipitate as a solid phase. A complex solution for oxygen separation characterized by causing a phase separation of |